The main power LED is dark |
The power switch is OFF |
Turn on the power switch |
No power source is connected to STK600 |
Do one of the following: |
The preprogrammed example code does not toggle the
LEDS |
There is no AVR device in the socket |
Plug the AVR device into the right socket (see ISP Programming and Parallel High Voltage Programming). |
The LEDS are not connected to the I/O ports |
Connect the LEDS header to the PORTD header, and SWITCHES header
to PORTB header (see LEDs and Switches). |
No target voltage |
Ensure that the VTG jumper is mounted and that VTG is set above
1.8V from AVRStudio |
The flash memory is erased |
Reprogram the AVR device |
The AVR device can not be programmed using
SPI. |
The AVR device is inserted with wrong orientation |
Check that the notch on the AVR socket matches the notch on the
AVR device. |
The ISP/PDI headers are not connected |
Connect the 6-pin flexible cable between the two 6-pin ISP/PDI
headers. |
The VTARGET voltage is too low |
Check the AVR datasheet for minimum operating voltage |
The memory lock bits are programmed |
Erase the memory before programming |
The SPI enable fuse is un-programmed |
Program the SPIEN fuse using Parallel High Voltage Programming or Serial High Voltage Programming |
Reset disable fuse is set. |
Check reset disable fuse. |
SPI frequency is too high. |
Check STK600 SPI frequency and make sure it is lower than target
clock divided by 4. |
CKDIV fuse is set |
Reduce ISP programming speed |
External pullup resistor on reset line too low. |
Ensure that external pullup resistor is ≥4.7kOhm. |
AREF0 jumper mounted |
For some devices the AREF0 is connected to a pin used for the
ISP interface. The AREF0 jumper must therefore be removed to do
serial programming of these devices. See the ISP Programming section
for which routingcards this applies. |
The AVR device can not be programmed using
JTAG. |
The VTARGET voltage is too low |
Check the AVR datasheet for minimum operating voltage |
The JTAG headers are not connected |
Connect the 10-pin flexible cable between the two 10-pin JTAG
headers. See JTAG Programming. |
The JTAG enable fuse is un-programmed |
Program the JTAGEN fuse using Parallel High Voltage Programming or Serial High Voltage Programming |
The memory lock bits are programmed |
Erase the memory before programming |
The AVR device can not be programmed using
high-voltage programming. |
The VTARGET voltage is too low |
Ensure that the voltage is at least 4.5V. |
The high-voltage programming headers are not connected |
Mount cables between the programming headers. See Parallel High Voltage Programming or Serial High Voltage Programming |
The reset jumper is not mounted |
Mount the reset jumper |
The I/O ports are connected to peripheral circuitry (leds,
switches, etc.) |
Remove all peripheral connections from the I/O ports belonging
to the high-voltage programming interface. |
The memory lock bits are programmed |
Erase the memory before programming |
AREF0 jumper mounted |
For some devices the AREF0 is connected to a pin used for the
parallel programming interface. The AREF0 jumper must therefore be
removed to do parallel programming of these devices. See the
Parallel High Voltage Programming section for which routingcards
this applies. |
AVR studio can not connect to STK600 |
USB cable is not connected, or power is off |
Connect USB cable |
Firmware is in an hang-up state |
Toggle power on STK600. |
The status LED is blinking orange |
Wrong combination of routing and socketcard, or card removed
when the kits is powered. |
Check the device support file for routing and socketcard
combination. Allways turn of kit power before removing or mounting
routing and socketcards. |
The status LED is blinking orange |
The mounted cards is not recognized by STK600. |
The routing and socketcard identification table in STK600 must
be upgraded. Start AVRStudio and connect to kit using programming
dialog. This will initiate a silent upgrade of the routing and
socketcard table in the STK600 controller.T |
The status LED is blinking red with low frequency |
Short circuit on VTarget or AREF |
Resolve the short circuit. |
The status LED is blinking red with high frequency |
To much current drawn from supply |
If the kit is powered from USB, try connecting a external power
to the DC jack. |
The LEDs don't work (running from external VTarget.) |
STK600 must be powered for LEDs to work. |
Supply power to STK600 and turn it on. |